Place the baking sheet in the freezer for 30 minutes to an hour, or long enough so the cookie dough pieces are hard and you can peel them easily off the parchment. Take the cookie sheet out of the ...
To make the cookie dough, whisk together the flour, baking powder, bicarbonate of soda and salt in a large bowl. Place the butter and sugars in a separate large bowl and, using an electric hand ...